Honda SUPER CUB C125 2023 Owner's Manual page 92

Brakes Adjusting the Rear Brake Light Switch
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Adjusting the Rear Brake Light
Switch
Check the operation of the brake light switch.
Hold the brake light switch and turn the
adjusting nut in the direction A if the switch
operates too late, or turn the nut in the
direction B if the switch operates too soon.
Adjusting nut
A
B
Brake light switch
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